Mann, H.T.
Water treatment and sanitation : a handbook of simple methods for rural areas in developing countries / H.T. Mann & D. Williamson - London : Intermediate Technology Publications , 1979 - 92p. ; 18 cm.
Includes bibliographical references and index.
<090303123X>
Water supply
Purification
Water
Rural areas
Sanitation
338.471 / MAN
Water treatment and sanitation : a handbook of simple methods for rural areas in developing countries / H.T. Mann & D. Williamson - London : Intermediate Technology Publications , 1979 - 92p. ; 18 cm.
Includes bibliographical references and index.
<090303123X>
Water supply
Purification
Water
Rural areas
Sanitation
338.471 / MAN